The architectural feature of the Islamic artists that came from the Romans was the horseshoe arch. This is what they liked best in Roman culture, so they decided to use it in their art and architecture as well. Islamic architecture is quite different from any other, although it was certainly influenced by many other world architectures.
The answer is D) all the above
Ferland was the one that did all of that maybe or maybe not idk
I would lean towards d, because a lot of the viking age art was made in tribute towards viking warriors, and viking warrior ships, etc..